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March 5, 1929. w. F. SLATER SPRAYER FOR EFFECTING INTIMATE CONTACT BETWEEN LIQUIDS AND GASES t") Sheets-Sheet I I WM 5.

Filed April 30, 1926 March 5, 1929. w SLATER 1,704,519

SPRAYER FOR EFFECTING INTIMATE CONTACT BETWEEN LIQUIDS AND GASES 5 Sheets-Sheet 3 Filed April 30, 1926 March 5, 1929. 1,704,519

SPRAYER FOR EFFECTI'NG INTIMATE CONTACT BETWEEN LIQUIDS AND GASES W. F. SLATER 5 Sheets-Sheet Filed April SQ, 1926 F .3. x n w m March 5, 1929. w. SLATER 1,704,519

SPRAYER FOR EFFECTING INTIMATE CONTACT BETWEEN LIQUIDS AND GA'SES Filed April 30, 1926 5 Sheets-Sheet 4 "March 5, 1929. w. F. SLATER 1,704,519

SPRAYER FOR- EFFECTING INTIMATE CONTACT BETWEEN LIQUIDS AND GASES Filed April 30, 1926 5 Sheets-Sheet 5 [mm m2 WA SAME/ 2' I 44", a W

AIME/V5) Patented Mar. 5, 19219.

UNITED STA TESPATENT OFFICE.

WALTER FRENCH SLATER, OF MAN SFIELD, ENGLAND, ASSIGNOR TO KIRKHAM,

HULETT & CHANDLER LIMITED, OF LONDON, ENGLAND.

fiPRAYER FOR EFEECTING INTIMATE CONTACT BETW'EEN LIQUIDS AND GASES.

Application filed April 36', 1926, Serial No. 105,686, and in, Great Britain June '2, 1925 My invention relates to Sprayers, such as are used in commotion with centrifugal gr :3- washers and like apparatus for effecting intinuito contact between liquid and gases.

'According to the invent-ion m improved spraym: comprises an inner boss or (ll'llil'l which is designed to be keyed upon a vortr cal shaft and is enclosed or surrounded by an outer wall or casing which is concentric with,

to constitute impellers for the purpose of lifting liquid from the bottom of the chamber in which the sprayer is mounted up into the interior of the sprayer. The liquid thus lifted is dist ibuted on to the inner surface of the perforated cylinder or extension by means of one or more distributing guides located above the impellers, such guides being advantageously in the form of hollow inverted truncated cones, the outer peripheries of which may be in contact with, or be at a predetermined distance from, the inner surface of the said perforated rim.

In. practice, the lifting scoops or impellers may be arranged so as to terminate at the bot tom edges of the inverted cones; or they may be extended upwards beyond that bolnt. Furthermore, the upper end of the perforated rim or extension may be furnished with an inwardly extending rim or flanges which may be either flat, curved or conical 1n shape.

To enable the invention to be fully understood 1. will. describe it by reference to the ucmjimpanying drawings in which Figure 1. an elevation of a sprayer con structodv in accordance with the invention for effecting intimate contact between liquids and gases.

Figures 2, 3 and 4 are, respectively, a sectional elevation, a central vertical section and a sectional plan view of tho sprayer.

Figure 5 is a plan view of the shell of the sprayer and Figures 6 and 7 are, respectively, an elevation and a plan view of the inner distributing conical guide. I

Figures 8 and 9 are, respectively, an eleva-. tion and a plan view of the outer distributing conical guide.

Figures 10 and 11 are, respectively, a plan view and a side view of. one of the lifting vanes or scoops.

Fig. 19,.is a view showing the sprayer in connection with the enclosing casing '01 chamher.

a is the inner boss or drum of tho'sprayei located in each of tho superposed chambers p and secured to the upright shaft Z) extending through said chambers. In the drawing the boss or drum dis shown madein halves; each half having abutting lugs c, 0 so that they can be secured together and hired ti 'htly on the shaft 6 by bolts (Z, (Z. The said halve s are also each shown with a projecting rib 6 designed to engage with a groove f in the shaft 6 to determine their position thereon. Other means than those shown may, however, be employed for securing the boss or drum (1 to, and in proper position on, the shaft 5.

g is the outer wall or casing of the sprayer concentric with, and attached to, the. boss a by the screws or bolts j h, h, i, being the annular space provided between the said casing and boss. This casing g is shown as being formed inhalvos secured together by bolts j is the perforated rim or cylinder, which is shown as being integral with thecasingg, but it may be independent of, but attached to, the said casing.

is, k are the vanes, scoops or impellers arranged in the annular space 2', which vanes are shaped or curved to lift the liquid from the bottom of the chamber, not shown, in which the sprayer is mounted, up into the interior of the said sprayer when the latter is rotated. by the shaft 71. The in'ipollors are shown as being secured in position by the screws 7L passing through holes in lugs 70 on the said impellers.

Z, Z are the guides for distributing the liquid lifted by the impellers is on to the inner surface of the perforated cylinder j, the said guides being shown in the form of hollow inverted truncated cones, the outer periphcries of which are shown in contact with the inner surface of the perforated rim j, or they may be at a predetermined distance therefrom. The guides Z, Z are advantageously made in halves having abutting flanges Z and are supported on the impellers 7;. In the drawing they are shewn located in slits m, m in the impellers so that the latter terminate above the bottom edges of the guides Z, Z The said impellers may, however, terminate at the bottom edges of the said guides.

70 is the inwardly extending conical l'lll'l with which the upper end of the perforated rim or cylinder j is provided and which is shown as being of conical form, although it may be flat or curved.

From the foregoing construction itcwill be seen that when the shaft Z) is rotated in the direction of the arrow, Figure 2, the'liquid, in which the lower end of the sprayer is immersed,-will be raised by the impellers 7ato the inner surface of the perforated rim 7' below the upper edge of the smaller guide Z and into both guides Z and Z up which the liquid will travel and be distributed over the remainder of the inner surface of the perforated rim the raised liquid being prevented from passing out from the top of the said rim by the flanges n.

It is to be understood that the position relatively to the impellers and conicity of the guides Z, Z are such as to direct the liquid from the impellers is so as to provide a uniform or varying density of spray over the whole perforated surface of the rim or cylinder Having now particularly described and ascertained the nature of my said invention and in whatmanner the same is to be performed, I declare that what I claim is 1. A sprayer for effecting intimate contact between liquids and gases comprising an inner drum designed tobe attached to a vertical shaft, an outer wall concentric with and attached to the said drum and providing an annular space between them, a perforated spraying cylinder forming an upward-extension of the said outer wall, a series of vanes arranged in the annular space between the drum and the outer wall and shaped so as to raise the liquid to be sprayed when the shaft is rotated, and means located above the vanes for directing the liquid raised thereby, over the inner surfaceof the perforated spraying cylinder.

2. A sprayer as claimed in claim 1, wherein the means for directing the liquid raised by the impellers on to the inner surface of the spraying cylinder are in the form of hollow inverted truncated cones.

3. In a centrifugal scrubber, a rotatable inner imperforate member, a rotatable outer imperforate member, a series of scoops positioned between said members adapted to be submerged at their lower ends in the liquid to be treated, a perforate member above said outer imperforate member, and inverted truncated cones arranged above said scoops to carry the scooped liquid upwardly to said perforate member through which it is thrown by centrifugal action.

4. A rotat-ive spraying element including a perforate cylinder, provided at its lower end with means adapted upon rotation of the element, to scoop up liquid and throw it upward- 1y on to the inner face of the perforate cylinder, and means fitted above the first mentioned means, comprising an arrangement of truncated cones designed to insure a uniform distribution of the liquid to be sprayed through said perforate cylinder by centrifugal action.

5. A rotative spraying element including a perforate cylinder provided at its lower end with means adapted upon rotation of the element to scoop up liquid and throw it outwardly on to the inner faceof the perfo ate cylinder, and annular guide means fitted above the scooping means and designed to insure a uniform distribution of the liquid to be sprayed through said perforate cylinder by centrifugal action.

WALTER FRENCH SLATER. 

